A ticker timer can be used to measure gravity (g) by timing the free fall of a ball breaker attached to ticker tape. The device works by making marks on the ticker tape during free fall. Measurements are taken between marks to calculate distance and velocity over time, which can then be used to calculate g. Potential sources of error include unclear marks and imperfect rulers. Mounting the ticker timer vertically can reduce resistance and improve accuracy.
Physical Quantities--Units and Measurement--Conversion of UnitsKhanSaif2
This presentation covers physical quantities and their types, units and their types, conversion of units and order of magnitude in a very interactive manner. I hope this presentation will be helpful for teachers as well as students.
Physical Quantities--Units and Measurement--Conversion of UnitsKhanSaif2
This presentation covers physical quantities and their types, units and their types, conversion of units and order of magnitude in a very interactive manner. I hope this presentation will be helpful for teachers as well as students.
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Topic of computational methods for mechanical engineering. Information about spring mass system. Mathematical modelling of spring mass system. free mass spring system. Damped vibration. Forced damped system. Free oscillation.
This presentation is all about how to calculate the acceleration due to gravity with formulae and pictures. the whole procedure is explained to you in a very elegant manner. Hope this is helpful to you. for any further details and information wait for my next upload.
Pendulum Lap investigating the relationship between the length of the pendlum string and the time needed for the oscillations
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Our experiment to determine Specific latent heat of fusion of ice
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1. Ticker timer (how to use a ticker timer to measure “g”) By Shadow, AS3
2. Ticker timer: A ticker timer is an equipment which can measure distance, speed and acceleration. coil magnet ticker tape power input (a.c.) vibrating bar carbon paper disc
3. How to make an experiment: What we need: Ticker-timer with power supply unit Ticker-tape Ball breaker Ruler & Pencil Preparation: To make the ticker-timer on the edge to the table To make the ticker-tape in the ticker-timer fixed with a clamp To make one end of the ticker-tape, which is closed to the ticker-timer, connected with a ball breaker To make a connection with the clamp and the ball breaker
4. Steps : ·Open the power, see whether the ticker-timer is working ·Open the clamp and let the ball breaker itself do the free fall ·We can get a constant points on the ticker-tape ·Use the ruler to measure the distance between the first three points as S1(since the first clear point from the eyes), and the distance of the three points in the middle as S2
5. ·We know that v=S/t, and we get that v1=S1/2t, v2=S2/2t (t=0.02s) ·We get v1 and v2, and we can point out the number of the points between v1 and v2, suppose it is n, so the acceleration of the gravity is: g=(v2-v1)/(n+1)t ·Continue the steps again and again, with different weight of ball breakers, and calculate the value of “g”, get the average of it
6. It’s reliable in some ways, for there is a chain wheel between the ball breaker and the clamp, it can reduce the resistance of the ticker-tape. In addition, because the weight of the ball breaker is heavy enough, we can nearly ignore the air resistance of the substance. Reliable??!!
7. Errors: Systemic errors: The points made by the ticker-timer is not always clear The scale of a ruler is sometimes unreliable Random errors: There is an resistance between the ticker-tape and the chain wheel We may measure a little different with the true value of the distance between the points
8. Addition: Actually, there is another way to measure “g” with the ticker-timer. Just make the ticker-timer and the ticker-tape in a vertical direction. Thus we can reduce the resistance between the chain wheel and the ticker-tape. Remember, we must open the power of the ticker-timer firstly. There is also a picture for us to understand the experiment.